Clinical or Research Assessment Questionnaire SickleInAfrica Core Data Element Instrument Consent Demographics SCD Diagnosis Details Management Details Laboratory Results: Complete Blood Count (PhenX protocol PX220501 unless stated otherwise) Kidney Function Assay (Phenx protocols PX141401, PX141501 and PX141601 unless stated otherwise) Liver Function Assay (PhenX protocol PX190801 unless stated otherwise) Laboratory Results: Bilirubin Level (PhenX protocol PX0810901 unless stated otherwise) Laboratory Results: Lactate Dehydrogenase Level (PhenX protocol PX0811001 unless stated otherwise) Laboratory Results: Reticulocyte Count (PhenX protocol PX0810601 unless stated otherwise) Laboratory Results: Hemoglobin Characterisation (PhenX protocol PX0830301 unless stated otherwise) Arterial blood gas - ABG (PhenX protocol PX090201 unless stated otherwise) SCDO (Jade Hotchkiss) A data capture instrument designed and applied by the Sickle In Africa Consortium. None